<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box {
            width: 100px;
            height: 100px;
            font-size: 50px;
            background-color: salmon;
            color: #fff;
            text-shadow:0 0 2px black,0 0 2px black,
            0 0 2px black,0 0 2px black,
                0 0 2px black, 0 0 2px black;
        }
    </style>
</head>

<body>
    <div class="box">
        css
    </div>
</body>

</html>